Phil, You might try a 67' length of wire (EFFW antenna). I've used that (and a 32' EFHW) on 20 a lot with my K1 with the KAT1 installed...tunes to close to 1:1 just fine.
Have fun at Crater Lake. There are some neat places along the rim for hamming. It's a 2000 mile drive (one way) for me but I've gotten there twice within the past several years. See http://www.prismnet.com/~nielw/qrp/CraterLake_july04.jpg and http://w0vlz.blogspot.com/2009/08/after-three-weeks-5300-miles-and-12.html 73, Niel - W0VLZ > Message: 2 > Date: Tue, 23 Aug 2011 16:00:17 -0700 > From: "Phillip Shepard"<ph...@riousa.com> > Subject: [Elecraft] KAT2 with EFHW antenna > To:<elecraft@mailman.qth.net> > Message-ID:<lnejjggbopigkcikmckdeegoiaaa.ph...@riousa.com> > Content-Type: text/plain; charset="us-ascii" > > I have been using my K2 with an MFJ tuner to feed an end fed halfwave wire > for portable use (like SOTA). The 20m antenna is 33' long and I use one or > two 16' counterpoise wires. It seems to work well for what it is and 10W. > I just built and installed the KAT2 ATU into the K2 to lighten my pack by > the loss of the MFJ. The KAT2 tuner checked out fine on the bench, but it > had a very hard time getting a good match to the antenna. In AUTO mode, it > only got the SWR down to about 5:1. I put it in ALT mode, and it spent a > long time searching before it got down to between 3:1 and 4:1, depending on > the 20m frequency. I added about 2" of wire to the antenna, and the tuer > got down to about 2:1 to 2.5:1. I added another foot of wire (now 36'), and > it got down to about 1.5:1. Five or six feet added yielded a perfect match > (1:1). So I now have a 39' wire for 20m use. > > Is this normal? Should the KAT2 be able to more easily match the 33' > halfwave antenna? Thank you. > > 73, > Phl, NS7P > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
